CN203715135U - Inclined pull preventing detection device for tower cane and tower crane - Google Patents
Inclined pull preventing detection device for tower cane and tower crane Download PDFInfo
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- CN203715135U CN203715135U CN201420110979.3U CN201420110979U CN203715135U CN 203715135 U CN203715135 U CN 203715135U CN 201420110979 U CN201420110979 U CN 201420110979U CN 203715135 U CN203715135 U CN 203715135U
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Abstract
The utility model discloses an inclined pull preventing detection device for a tower cane. The inclined pull preventing detection device for the tower cane comprises an installation shaft, a safety swinging rod, infrared emitters and infrared sensors, wherein the top end of the safety swinging rod is connected with the installation shaft; the safety swinging rod is installed on a tower body of the tower crane in a free swinging mode through the installation shaft; the infrared emitters and the infrared sensors are arranged on two sides of the safety swinging rod, and correspond to each other; infrared rays emitted from the infrared emitters can be irradiated to the infrared sensors when being not shielded and are received and sensed by the infrared sensors; when the tower body of the tower crane is inclined to a preset angle, the safety swinging rod swings to infrared ray propagation paths of the infrared emitters, and the infrared rays which are emitted from the infrared emitters are shielded by the safety swinging rod and cannot be received by the infrared sensors. The utility model also discloses the tower crane with the inclined pull preventing detection device for the tower cane.
Description
Technical field
The utility model relates to tower crane technical field, particularly about the anti-oblique pull detecting device of a kind of tower crane and tower crane.
Background technology
In recent years, along with construction trade develops in depth, tower crane (also referred to as " tower machine ") is widely used.Promoting the use of of tower machine, has changed building operation vertically and the transportation mode of level gradually, for operating personal has been created safe operating condition, has also improved work efficiency simultaneously.
The operating instruction regulation inaccurate " pull and hang sideling " of tower machine equipment, but in actual mechanical process, because of tower machine driver's operation attainment or the restriction of objective condition, cause in the practical application of tower machine equipment the phenomenon of ubiquity pull and hang sideling.Once there is this kind of situation, be easy to cause device damage or serious accident.And current tower machine equipment is seldom installed anti-oblique pull detecting device, or have the equipment that related device is installed, but because correlation technique is immature, cause in actual use, effect is undesirable, performs practically no function.
Utility model content
In view of this, embodiment of the present utility model provides a kind of tower crane anti-oblique pull detecting device, the existing pull and hang sideling phenomenon of tower crane in prior art is carried out simply, detect fast and effectively.
Embodiment of the present utility model provides a kind of tower crane anti-oblique pull detecting device, comprises installation shaft, safe fork, infrared transmitter and infrared inductor; The top of described safe fork is connected with described installation shaft, and described safe fork can be freely swung and is arranged on the tower body of tower crane by described installation shaft; Described infrared transmitter and described infrared inductor are arranged on the both sides of described safe fork, and described infrared transmitter and the corresponding setting mutually of described infrared inductor; The infrared ray that described infrared transmitter is sent can not be radiated on described infrared inductor and by described infrared inductor and receives and respond to when blocking; The tower body of described tower crane is when inclination reaches default angle, described safe fork is rocked on the infrared ray propagation path of described infrared transmitter, and the infrared ray of described infrared transmitter transmitting is blocked by described safe fork and described infrared inductor cannot receive the infrared ray that described infrared transmitter is launched.
Further, described infrared transmitter comprises the first infrared transmitter, and described infrared inductor comprises the first infrared inductor; The tower body of described tower crane is when inclination reaches the first angle of inclination, and the infrared ray of described the first infrared transmitter transmitting is blocked by described safe fork.
Further, the quantity of described the first infrared transmitter is two, and described two the first infrared transmitter are separately positioned on the both sides of described safe fork and are arranged symmetrically with respect to described safe fork; The quantity of described the first infrared inductor is two, and described two the first infrared inductors are separately positioned on the both sides of described safe fork and are arranged symmetrically with respect to described safe fork; Be positioned at first infrared transmitter and the corresponding setting mutually of the first infrared inductor of described safe fork the same side.
Further, described infrared transmitter also comprises the second infrared transmitter, described infrared inductor also comprises the second infrared inductor, the tower body of described tower crane is when inclination reaches the second angle of inclination, and the infrared ray of described the second infrared transmitter transmitting is blocked by described safe fork.
Further, the quantity of described the second infrared transmitter is two, and described two the second infrared transmitter are separately positioned on the both sides of described safe fork and are arranged symmetrically with respect to described safe fork; The quantity of described the second infrared inductor is two, and described two the second infrared inductors are separately positioned on the both sides of described safe fork and are arranged symmetrically with respect to described safe fork; Be positioned at second infrared transmitter and the corresponding setting mutually of the second infrared inductor of described safe fork the same side.
Further, described the first infrared inductor is compared to the more close described safe fork of described the second infrared inductor, and described the first infrared transmitter is compared to the more close described safe fork of described the second infrared transmitter.
Further, the anti-oblique pull detecting device of described tower crane also comprises the first adapter plate and the second adapter plate, and described the first adapter plate and described the second adapter plate interval arrange, and described safe fork is between described the first adapter plate and described the second adapter plate; Described the first infrared inductor and described the second infrared inductor are arranged on described the first adapter plate, and described the first infrared transmitter and described the second infrared transmitter are arranged on described the second adapter plate.
Further, the anti-oblique pull detecting device of described tower crane also comprises controller and annunciator, and described tower body is when inclination reaches the first angle of inclination or the second angle of inclination, and described controller is controlled described annunciator and sent alerting signal.
Further, the anti-oblique pull detecting device of described tower crane also comprises oblique pull early warning relay and oblique pull alarm relay, described the first infrared inductor is inputted oblique pull early warning incoming signal to described controller when described tower body inclining reaches the first angle of inclination, described oblique pull early warning relay responds the oblique pull early warning incoming signal of input, and the alarm loop of controlling described annunciator place is connected and to be made described alarm equipment alarm; Described the second infrared inductor is inputted oblique pull warning incoming signal to described controller when described tower body inclining reaches the second angle of inclination, described oblique pull alarm relay responds the oblique pull warning incoming signal of input, the alarm loop connection of controlling on the one hand described annunciator place makes described alarm equipment alarm, and each work loop of controlling on the other hand tower crane disconnects.
Embodiment of the present utility model also provides a kind of tower crane, comprise tower body and be connected to the crane arm on described tower body, described tower crane also comprises the anti-oblique pull detecting device of above-mentioned tower crane, and the anti-oblique pull detecting device of described tower crane is arranged on described tower body.
The beneficial effect that the technical scheme that embodiment of the present utility model provides is brought is: the anti-oblique pull detecting device of tower crane that above-described embodiment provides, by the detection to tower body inclining angle, thereby the safe condition to tower machine judges, can carry out simply the existing pull and hang sideling phenomenon of tower crane, detect fast and effectively, the violation operation that effectively prevents pull and hang sideling occurs, and then avoid safety misadventure, detection sensitivity is high; Adopt ripe infrared induction mode to control the state that drives loop, infrared induction device technique is ripe, and cost is low, failure rate is low, and safety factor is high, does not have the phenomenon of traditional circuit sheet bad contact; Anti-oblique pull detecting device can be arranged on the crossbeam of slewing tower, simple in structure and easy for installation, is beneficial in enormous quantities and promotes the use of.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in embodiment of the present utility model, below the accompanying drawing of required use during embodiment is described is briefly described.
Fig. 1 is that the anti-oblique pull detecting device that the present embodiment proposes is arranged on the structural representation on tower crane.
Fig. 2 is the main TV structure schematic diagram of the anti-oblique pull detecting device of the present embodiment.
Fig. 3 is the side-looking structural representation of the anti-oblique pull detecting device of the present embodiment.
Fig. 4 A is that the anti-oblique pull detecting device of the present embodiment is in the structural representation of the first operating position.
Fig. 4 B is that the anti-oblique pull detecting device of the present embodiment is in the structural representation of the second operating position.
Fig. 5 is the electrical control schematic diagram of the anti-oblique pull detecting device of the present embodiment.
Fig. 6 is the control circuit principle schematic of the anti-oblique pull detecting device of the present embodiment.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model embodiment is further described.
The utility model relates to the anti-oblique pull detecting device of a kind of tower crane, be applicable to various tower cranes, this anti-oblique pull detecting device is by detecting the variation of tower body inclining angle, whether the tower body inclining angle that judgement produces when pull and hang sideling surpasses the angle of inclination of tower machine design, when tower body inclining angle surpasses safety limit, this anti-oblique pull detecting device is to tower machine alarm driver, and can further automatically cut off the work loop of tower machine.
Fig. 1 is that the anti-oblique pull detecting device that the present embodiment proposes is arranged on the structural representation on tower crane, please refer to the drawing 1, this tower crane 10 comprises tower body 11 and is connected to the parts such as crane arm 16, equilibrium arm 17 and tower head 18 on tower body 11, wherein tower body 11 comprises fixed tower 111, undersetting 112, upper bracket 113 and slewing tower 114, and driver's cab 15 is installed on slewing tower 114.This anti-oblique pull detecting device 20 can be arranged on the tower body 11 of tower crane 10; Preferably, this anti-oblique pull detecting device 20 is arranged on slewing tower 114, it is the A place, position in Fig. 1, because slewing tower 114 is overhead far away, when tower crane 10 its tower bodies 11 of generation pull and hang sideling tilt with respect to ground, the tilt displacement at slewing tower 114 places is maximum, and anti-oblique pull detecting device 20 is arranged on slewing tower 114 and is more conducive to the inclination of tower body 11 to detect.
Fig. 2 is the main TV structure schematic diagram of the anti-oblique pull detecting device of the present embodiment proposition, Fig. 3 is the side-looking structural representation of the anti-oblique pull detecting device of the present embodiment proposition, please refer to the drawing 2 and Fig. 3, this anti-oblique pull detecting device 20 comprises installation shaft 21, safe fork 22, the first infrared transmitter 23, the first infrared inductor 24, the second infrared transmitter 25, the second infrared inductor 26, the first adapter plate 27, the second adapter plate 28 and annunciator 29.
Slewing tower 114 is mainly by four main chords that vertically arrange, is horizontally set on crossbeam between adjacent main chord and many web members between main chord and crossbeam arranged in a crossed manner are welded to each other the structure that the cross-sectional plane forming is square frame-shaped.This anti-oblique pull detecting device 20 is to be arranged on slewing tower 114 by installation shaft 21, in the present embodiment, installation shaft 21 is arranged on a wherein crossbeam 141 of slewing tower 114, that is to say, this anti-oblique pull detecting device 20 is to be arranged on the crossbeam 141 of slewing tower 114 by installation shaft 21, but the utility model is not limited to this, this anti-oblique pull detecting device 20 also can be arranged on other positions of tower crane 10.
The top of safe fork 22 is connected with installation shaft 21, and the bottom of safe fork 22 is provided with pouring weight 221.Safe fork 22 can be freely swung and is arranged on the tower body 11 of tower crane 10 by installation shaft 21, particularly, in the present embodiment, safe fork 22 is flexibly connected with slewing tower 114 by installation shaft 21, safe fork 22 can freely swing with respect to slewing tower 114, the swaying direction of safe fork 22 is vertical with the sense of motion of loading trolley (not shown) on crane arm 16, and in other words, the swaying direction of safe fork 22 is perpendicular to the paper direction shown in Fig. 1.
Connection mode for installation shaft 21 with crossbeam 141, in the present embodiment, installation shaft 21 is fixedly mounted on crossbeam 141, and the top of safe fork 22 is connected with the collar 222, and this collar 222 is set in installation shaft 21 free to rotately, safe fork 22 can be rotated with respect to fixing installation shaft 21.In order to increase the flexible swinging of safe fork 22, in installation shaft 21, can be set with bearing (not shown), bearing is between installation shaft 21 and the collar 222 of safe fork 22.In other embodiments, installation shaft 21 also can be arranged on crossbeam 141 actively, installation shaft 21 is free to rotate with respect to crossbeam 141, and together with the top of safe fork 22 is permanently connected with installation shaft 21, now, safe fork 22 is done as a whole can rotation with respect to crossbeam 141 together with installation shaft 21.
The first infrared transmitter 23 and the first infrared inductor 24 are arranged on the side direction of safe fork 22, and the first infrared transmitter 23 and the mutual corresponding setting of the first infrared inductor 24, the infrared ray that the first infrared transmitter 23 is sent can be radiated on the first infrared inductor 24 and by the first infrared inductor 24 and receives and respond to when not blocking; The infrared ray that the first infrared transmitter 23 is sent cannot be radiated on the first infrared inductor 24 when being blocked, and now the first infrared inductor 24 cannot receive the infrared ray that the first infrared transmitter 23 is sent; Therefore, whether the first infrared inductor 24 can be according to receiving infrared ray and produce corresponding control signal.
In the present embodiment, the quantity of the first infrared inductor 24 is two, is separately positioned on the both sides of safe fork 22 and is arranged symmetrically with respect to safe fork 22; The quantity of the first infrared transmitter 23 is two, is separately positioned on the both sides of safe fork 22 and is arranged symmetrically with respect to safe fork 22; Be positioned at first infrared transmitter 23 and the mutual corresponding setting of the first infrared inductor 24 of safe fork 22 the same sides, the infrared ray that each first infrared transmitter 23 is sent can be radiated on the first corresponding infrared inductor 24 when not blocking.
The second infrared transmitter 25 and the second infrared inductor 26 are arranged on the side direction of safe fork 22, and the second infrared transmitter 25 and the mutual corresponding setting of the second infrared inductor 26, the infrared ray that the second infrared transmitter 25 is sent can be radiated on the second infrared inductor 26 and by the second infrared inductor 26 and receives and respond to when not blocking; The infrared ray that the second infrared transmitter 25 is sent cannot direct irradiation when being blocked on the second infrared inductor 26, now the second infrared inductor 26 cannot receive the infrared ray that the second infrared transmitter 25 is sent; Therefore, whether the second infrared inductor 26 also can be according to receiving infrared ray and produce corresponding control signal.
In the present embodiment, the quantity of the second infrared inductor 26 is two, be separately positioned on the both sides of safe fork 22 and be arranged symmetrically with respect to safe fork 22, and the second infrared inductor 26 is positioned at the outside of the first infrared inductor 24, the first infrared inductor 24 is compared to the more close safe fork 22 of the second infrared inductor 26; The quantity of the second infrared transmitter 25 is two, be separately positioned on the both sides of safe fork 22 and be arranged symmetrically with respect to safe fork 22, and the second infrared transmitter 25 is positioned at the outside of the first infrared transmitter 23, the first infrared transmitter 23 is compared to the more close safe fork 22 of the second infrared transmitter 25; Be positioned at second infrared transmitter 25 and the mutual corresponding setting of the second infrared inductor 26 of safe fork 22 the same sides, the infrared ray that each second infrared transmitter 25 is sent can be radiated on the second corresponding infrared inductor 26 when not blocking.
The first adapter plate 27 and the second adapter plate 28 front and back parallel interval arrange, and safe fork 22 is between the first adapter plate 27 and the second adapter plate 28; Two the first infrared inductors 24 and two the second infrared inductors 26 are arranged on the first adapter plate 27, and two the first infrared transmitter 23 and two the second infrared transmitter 25 are arranged on the second adapter plate 28.The first adapter plate 27 and the second adapter plate 28 can be weldingly fixed on slewing tower 114.
Annunciator 29 for sending alerting signal in tower body 11 run-off the straights and while reaching certain limit, can be arranged on the place of being convenient to allow the operator of tower crane 10 notice, for example, is arranged in driver's cab 15.Annunciator 29 such as be can sound, light or simultaneously sound and the panalarm of the alarm signal such as light, in the present embodiment, annunciator 29 is safe alarm bells.
Fig. 4 A is that the anti-oblique pull detecting device of the present embodiment is in the structural representation of the first operating position, please refer to the drawing 4A, when there is pull and hang sideling in tower crane 10, tower body 11 produces, in tower body 11 run-off the straights, safe fork 22 will produce and swing with respect to tower body 11, when tower body 11 tilts to reach default the first tilt angle theta a (the first tilt angle theta a can be set as the safe inclination angle of tower machine), safe fork 22 is rocked on the infrared ray propagation path of the first infrared transmitter 23, the infrared ray of the first infrared transmitter 23 transmittings is just in time blocked by safe fork 22, the first infrared inductor 24 cannot receive infrared ray and lose infrared ray action, now the angle between safe fork 22 and the line of centers 11a of tower body 11 is the first tilt angle theta a.
Fig. 4 B is that the anti-oblique pull detecting device of the present embodiment is in the structural representation of the second operating position, please refer to the drawing 4B, when there is pull and hang sideling in tower crane 10, tower body 11 produces, when tower body 11 tilts to reach default the second tilt angle theta b, (θ b is greater than θ a, the second tilt angle theta b can be set as the tilt boundary angle of tower machine), safe fork 22 is rocked on the infrared ray propagation path of the second infrared transmitter 25, the infrared ray of the second infrared transmitter 25 transmittings is just in time blocked by safe fork 22, the second infrared inductor 26 cannot receive infrared ray and lose infrared ray action, now the angle between safe fork 22 and the line of centers 11a of tower body 11 is the second tilt angle theta b, at this, the second tilt angle theta b is greater than the first tilt angle theta a.
According to GB/T5031-2008 regulation, under rated load effect, the horizontal off-position of tower horn root hinge moves and should be not more than 1.34H/100.Wherein H is that arm root hinge is to the vertical distance of tower machine reference plane (maximum unattached height when nothing is adhered to) or the highest attachment point (having the maximum cantilever height while adhering to).Due to different model tower machine unattached height difference, need stipulate according to GB/T5031-2008, extrapolate θ a, θ b, wherein θ a=0.9* θ b.
Fig. 5 is the electrical control schematic diagram of the anti-oblique pull detecting device of the present embodiment, Fig. 6 is the control circuit principle schematic of the anti-oblique pull detecting device of the present embodiment, please refer to the drawing 5 and Fig. 6, the anti-oblique pull detecting device of the present embodiment also further comprises in controller 31, oblique pull early warning relay 32(figure and representing with KAm) and oblique pull alarm relay 33(figure in KAn, represent).The first infrared inductor 24 is for when tower body 11 tilts to reach the first tilt angle theta a, to controller 31 input oblique pull early warning incoming signals, the oblique pull early warning incoming signal of 32 pairs of inputs of now oblique pull early warning relay responds, and the alarm loop of controlling annunciator 29 places connects, annunciator 29 is reported to the police; The second infrared inductor 26 is for when tower body 11 tilts to reach the second tilt angle theta b, to controller 31 input oblique pull warning incoming signals, the oblique pull warning incoming signal of now 33 pairs of inputs of oblique pull alarm relay responds, controlling on the one hand the alarm loop at annunciator 29 places connects, annunciator 29 is reported to the police, the disconnection such as each work loop such as the lift control loop of control tower machine, revolution control loop, luffing control loop on the other hand, reach each work loop of automatic cut-out tower machine, further cause danger avoiding.
Below in conjunction with Fig. 1 to Fig. 6, illustrate that the principle of work of above-mentioned anti-oblique pull detecting device 20 is as follows:
When tower crane 10 normal operation, the infrared ray that the first infrared transmitter 23 is sent is radiated on the first infrared inductor 24 always, the infrared ray that the second infrared transmitter 25 is sent is radiated on the second infrared inductor 26 always, each work loop of tower machine keeps on-state, normal operation;
When there is pull and hang sideling in tower crane 10, the capsizing moment that pull and hang sideling produces will cause tower body 11 to produce, when tower body 11 tilts to reach the first tilt angle theta a (as shown in Figure 4 A), the infrared ray of the first infrared transmitter 23 transmittings is blocked by safe fork 22, the first infrared inductor 24 cannot receive infrared ray, thereby lose infrared ray action, and to controller 31 input oblique pull early warning incoming signals, the oblique pull early warning incoming signal of 32 pairs of inputs of now oblique pull early warning relay responds, and connect the alarm loop at annunciator 29 places, make the annunciator 29 that is arranged on driver's cab 15 send sound, prompting driver has the phenomenon of pull and hang sideling to occur,
When the capsizing moment producing when pull and hang sideling makes tower body 11 tilt to reach the second tilt angle theta b (as shown in Figure 4 B), the infrared ray of the second infrared transmitter 25 transmittings is blocked by safe fork 22, the second infrared inductor 26 cannot receive infrared ray, thereby lose infrared ray action, and to controller 31 input oblique pull warning incoming signals, the oblique pull warning incoming signal of now 33 pairs of inputs of oblique pull alarm relay responds, connect on the one hand the alarm loop at annunciator 29 places, make the annunciator 29 that is arranged on driver's cab 15 send sound, prompting driver has the phenomenon of pull and hang sideling to occur, make on the other hand the lift control loop of tower machine, revolution control loop, the work loops such as luffing control loop disconnect, automatically cut off each work loop of tower machine, thereby restriction tower machine is done corresponding actions, make tower machine cannot move and then guarantee device security.
The anti-oblique pull detecting device that the utility model embodiment proposes, by the detection to tower body inclining angle, thereby the safe condition to tower machine judges, can carry out simply the existing pull and hang sideling phenomenon of tower crane, detect fast and effectively, the violation operation that effectively prevents pull and hang sideling occurs, and then avoid safety misadventure, detection sensitivity is high; Adopt ripe infrared induction mode to control the state that drives loop, infrared induction device technique is ripe, and cost is low, failure rate is low, and safety factor is high, does not have the phenomenon of traditional circuit sheet bad contact; Anti-oblique pull detecting device can be arranged on the crossbeam of slewing tower, simple in structure and easy for installation, is beneficial in enormous quantities and promotes the use of.
The utility model embodiment also provides a kind of tower crane 10, comprises tower body 11, is connected to crane arm 16 on tower body 11 and above-mentioned anti-oblique pull detecting device 20, and this anti-oblique pull detecting device 20 is arranged on tower body 11.Further, tower body 11 comprises the slewing tower 114 being connected with upper bracket 113, and this anti-oblique pull detecting device 20 is arranged on slewing tower 114, and the swaying direction of safe fork 22 is vertical with the sense of motion of loading trolley on crane arm 16.
In this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, except comprising those listed key elements, but also can comprise other key elements of clearly not listing.
In this article, the related noun of locality such as forward and backward, upper and lower is to be arranged in figure and parts position each other defines with parts in accompanying drawing, just clear and convenient for expression technology scheme.The use that should be appreciated that the described noun of locality should not limit the scope that the application asks for protection.
In the situation that not conflicting, the feature in above-described embodiment and embodiment can mutually combine herein.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. the anti-oblique pull detecting device of tower crane, is characterized in that, comprises installation shaft (21), safe fork (22), infrared transmitter and infrared inductor; The top of described safe fork (22) is connected with described installation shaft (21), and described safe fork (22) can be freely swung and is arranged on the tower body (11) of tower crane (10) by described installation shaft (21); Described infrared transmitter and described infrared inductor are arranged on the both sides of described safe fork (22), and described infrared transmitter and the corresponding setting mutually of described infrared inductor; The infrared ray that described infrared transmitter is sent can not be radiated on described infrared inductor and by described infrared inductor and receives and respond to when blocking; The tower body (11) of described tower crane (10) is when inclination reaches default angle, described safe fork (22) is rocked on the infrared ray propagation path of described infrared transmitter, and the infrared ray of described infrared transmitter transmitting is blocked by described safe fork (22) and described infrared inductor cannot receive the infrared ray that described infrared transmitter is launched.
2. the anti-oblique pull detecting device of tower crane as claimed in claim 1, is characterized in that, described infrared transmitter comprises the first infrared transmitter (23), and described infrared inductor comprises the first infrared inductor (24); The tower body (11) of described tower crane (10) reaches the first angle of inclination in inclination, and (θ is a) time, and the infrared ray of described the first infrared transmitter (23) transmitting is blocked by described safe fork (22).
3. the anti-oblique pull detecting device of tower crane as claimed in claim 2, it is characterized in that: the quantity of described the first infrared transmitter (23) is two, described two the first infrared transmitter (23) are separately positioned on the both sides of described safe fork (22) and are arranged symmetrically with respect to described safe fork (22); The quantity of described the first infrared inductor (24) is two, and described two the first infrared inductors (24) are separately positioned on the both sides of described safe fork (22) and are arranged symmetrically with respect to described safe fork (22); Be positioned at first infrared transmitter (23) and the first infrared inductor (24) corresponding setting mutually of described safe fork (22) the same side.
4. the anti-oblique pull detecting device of tower crane as claimed in claim 2, it is characterized in that: described infrared transmitter also comprises the second infrared transmitter (25), described infrared inductor also comprises the second infrared inductor (26), the tower body (11) of described tower crane (10) is when inclination reaches the second angle of inclination (θ b), and the infrared ray of described the second infrared transmitter (25) transmitting is blocked by described safe fork (22).
5. the anti-oblique pull detecting device of tower crane as claimed in claim 4, it is characterized in that: the quantity of described the second infrared transmitter (25) is two, described two the second infrared transmitter (25) are separately positioned on the both sides of described safe fork (22) and are arranged symmetrically with respect to described safe fork (22); The quantity of described the second infrared inductor (26) is two, and described two the second infrared inductors (26) are separately positioned on the both sides of described safe fork (22) and are arranged symmetrically with respect to described safe fork (22); Be positioned at second infrared transmitter (25) and the second infrared inductor (26) corresponding setting mutually of described safe fork (22) the same side.
6. the anti-oblique pull detecting device of tower crane as claimed in claim 5, it is characterized in that: described the first infrared inductor (24) is compared to the more close described safe fork of described the second infrared inductor (26) (22), and described the first infrared transmitter (23) is compared to the more close described safe fork of described the second infrared transmitter (25) (22).
7. the anti-oblique pull detecting device of tower crane as claimed in claim 4, it is characterized in that: the anti-oblique pull detecting device of described tower crane also comprises the first adapter plate (27) and the second adapter plate (28), described the first adapter plate (27) arranges with described the second adapter plate (28) interval, and described safe fork (22) is positioned between described the first adapter plate (27) and described the second adapter plate (28); It is upper that described the first infrared inductor (24) and described the second infrared inductor (26) are arranged on described the first adapter plate (27), and described the first infrared transmitter (23) and described the second infrared transmitter (25) are arranged on described the second adapter plate (28).
8. the anti-oblique pull detecting device of tower crane as claimed in claim 4, it is characterized in that: the anti-oblique pull detecting device of described tower crane also comprises controller (31) and annunciator (29), described tower body (11) reaches the first angle of inclination in inclination, and (when θ a) or the second angle of inclination (θ b), described controller (31) is controlled described annunciator (29) and is sent alerting signal.
9. the anti-oblique pull detecting device of tower crane as claimed in claim 8, it is characterized in that: the anti-oblique pull detecting device of described tower crane also comprises oblique pull early warning relay (32) and oblique pull alarm relay (33), described the first infrared inductor (24) described tower body (11) tilt to reach the first angle of inclination (θ a) time to described controller (31) input oblique pull early warning incoming signal, described oblique pull early warning relay (32) responds the oblique pull early warning incoming signal of input, and the alarm loop connection of controlling described annunciator (29) place is reported to the police described annunciator (29), described the second infrared inductor (26) is inputted oblique pull warning incoming signal to described controller (31) when described tower body (11) tilts to reach the second angle of inclination (θ b), described oblique pull alarm relay (33) responds the oblique pull warning incoming signal of input, the alarm loop connection of controlling on the one hand described annunciator (29) place is reported to the police described annunciator (29), and each work loop of controlling on the other hand tower crane (10) disconnects.
10. a tower crane, comprise tower body (11) and be connected to the crane arm (16) on described tower body (11), it is characterized in that, described tower crane also comprises the anti-oblique pull detecting device of the tower crane as described in claim 1 to 9 any one (20), and the anti-oblique pull detecting device of described tower crane (20) is arranged on described tower body (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420110979.3U CN203715135U (en) | 2014-03-12 | 2014-03-12 | Inclined pull preventing detection device for tower cane and tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420110979.3U CN203715135U (en) | 2014-03-12 | 2014-03-12 | Inclined pull preventing detection device for tower cane and tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203715135U true CN203715135U (en) | 2014-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420110979.3U Expired - Lifetime CN203715135U (en) | 2014-03-12 | 2014-03-12 | Inclined pull preventing detection device for tower cane and tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203715135U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104528532A (en) * | 2014-12-23 | 2015-04-22 | 中联重科股份有限公司 | Inclined hoisting state monitoring equipment and control method, control equipment, and system thereof |
| CN106643881A (en) * | 2016-11-24 | 2017-05-10 | 蓬溪斌鹏科技有限公司 | Construction machinery monitoring system for construction site |
-
2014
- 2014-03-12 CN CN201420110979.3U patent/CN203715135U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104528532A (en) * | 2014-12-23 | 2015-04-22 | 中联重科股份有限公司 | Inclined hoisting state monitoring equipment and control method, control equipment, and system thereof |
| CN106643881A (en) * | 2016-11-24 | 2017-05-10 | 蓬溪斌鹏科技有限公司 | Construction machinery monitoring system for construction site |
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